Lagrange Interpolation - Simple MATLAB Code Written by Hand! In-depth Explanation

This video introduces Lagrange interpolation in a MATLAB code written by hand, and an example of how data can be interpolated using Lagrange polynomials.
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[@ngocmannguyen3057]

Can you show me how to formulate linear regression and non-linear regression code in MATLAB, please?

[@engineersPH]

Hi! You can use polyfit function in matlab for a linear and nonlinear regression. Here is an example code for that: % Example data x = [1, 2, 3, 4, 5]; % Independent variable y = [2, 4, 5, 4, 5]; % Dependent variable % Perform linear/non-linear regression coefficients = polyfit(x, y, 1); %coefficients = polyfit(x, y, degree) You can then set the degree value to 1 for a linear regression and set to higher degree for a non-linear regression.